REINFORCEMENT WIRE HAVING SPIRAL PROFILE

The invention can be used in producing prestressed reinforcement for reinforcing items made of concrete and provides maximally strong adhesion to concrete in any potentially possible direction of displacement, and a high level of specific strength, relaxation resistance and fatigue resistance. In a reinforcement wire having a spiral profile, three ruled surfaces, separated from one another by sections of a cylindrical surface, are applied to the surface of the wire along a spiral line. Trapezoidal projections are arranged on the ruled surfaces at an incline in a direction counter to the direction of the spiral line along which the ruled surfaces themselves are arranged. 本发明可用于生产用于由混凝土制成的增强件的预应力钢筋，并在任何可能的位移方向上提供对混凝土的最大强粘着性，以及高水平的比强度、抗松弛性和抗疲劳性。在具有螺旋形剖面的钢筋中，通过圆柱表面的部分彼此分开的三个直纹表面沿着螺旋线施加到钢丝的表面上。梯形突起在与直角线相对的螺旋线的方向相反的方向上倾斜地布置在所述直角线表面上，螺旋线的方向沿着直角线布置。